Procathepsin L, Human Recombinant

  • Catalog number
    7581-5
  • Price
    Please ask
  • Size
    5 ug
  • Synonyms
    CTSL, CTSL1
  • Alternative_names
    CTSL, CTSL1
  • Description
    A lysosomal protease playing a role in protein degradation, arthritis, apoptosis, and cancer.
  • Recombinant
    Yes
  • Source
    E. coli
  • Purity by SDS PAGE
    ≥90%
  • Assay
    SDS-PAGE
  • Activity Specifications test method
    > 10000 mU/mg (1 U = digestion of 1 µmole of Z-Phe-Arg-AFC substrate (K142-100) per minute at 37°C in 50 mM Sodium Acetate, 100 mM NaCl, pH 5.5).
  • Biological activity
    > 10000 mU/mg (1 U = digestion of 1 µmole of Z-Phe-Arg-AFC substrate (K142-100) per minute at 37°C in 50 mM Sodium Acetate, 100 mM NaCl, pH 5.5).
  • Results
    > 10000 mU/mg
  • Unit Definition
    1 U = digestion of 1 µmole of Z-Phe-Arg-AFC substrate (K142-100) per minute at 37°C in 50 mM Sodium Acetate, 100 mM NaCl, pH 5.5
  • Molecular Weight
    39.4 kDa (18-333 aa + N-terminal poly-his tag)
  • Storage Temp
    -80°C
  • Shipping
    Dry ice
  • Shelf Life
    12 months
  • Concentration
    1 mg/ml
  • Appearance
    Liquid
  • Physical form description
    1 mg/ml in 25 mM Na2HPO4, 500 mM NaCl, pH 7.0.
  • Background Information
    Cathepsin L is a lysosomal protease that can be secreted from the cell and is implicated to play a role in protein degradation, arthritis, apoptosis, and cancer. BioVision’s Procathepsin L can be auto-catalytically activated to mature Cathepsin L (~24 kDa) by adding an equal volume of 0.2 M NaOAc, 5 mM EDTA pH 4.0 containing fresh 5 mM DTT at RT. The enzyme is fully activated within 30 min of incubation at RT. After activation mature Cathepsin L is highly auto-proteolytic at pH 4.0, and care must be taken to avoid self-proteolysis. If the activated enzyme is not used immediately, methylmethanthiosulfonate (1mM final concentration; MeS-SO2Me; MMTS) could be added and sample should be frozen at -80°C. The activity can be then restored by adding L-cysteine (3 M excess over MMTS) to the enzyme solution.
  • Handling
    Centrifuge the vial prior to opening.
  • Usage
    For Research Use Only! Not to be used in humans
  • Properties
    Human proteins, cDNA and human recombinants are used in human reactive ELISA kits and to produce anti-human mono and polyclonal antibodies. Modern humans (Homo sapiens, primarily ssp. Homo sapiens sapiens). Depending on the epitopes used human ELISA kits can be cross reactive to many other species. Mainly analyzed are human serum, plasma, urine, saliva, human cell culture supernatants and biological samples.
  • Additional source
    Recombinants or rec. proteins
  • Group
    recombinants
  • Gene target
  • Short name
    Procathepsin L, Recombinant
  • Technique
    Recombinant, E. coli recombinant proteins are genetic recombinations in Escherichia coli, supplied as white sterile powder lyopillized. Biovision advises they will be reconstituted in a buffer soluion or culture medium for cell culture.
  • Species
    Human, Humans
  • Alternative name
    Procathepsin L, H. sapiens Rec.
  • Alternative technique
    rec
MeSH Data
  • Name
  • Concept
    Scope note: The initial culturing of cells derived directly from fresh TISSUES.
  • Tree numbers
    • E01.370.225.500.223.500
    • E05.200.500.265.500
    • E05.242.223.500
    • E05.481.500.249.500
  • Qualifiers
    ethics, trends, veterinary, history, classification, economics, instrumentation, methods, standards, statistics & numerical data
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